{
  "patent_number": "US 4492385",
  "country": "US",
  "title": "How Modern Rollerblades Became Adjustable and Interchangeable",
  "original_title": "Skate having an adjustable blade or wheel assembly",
  "summary": "A 1982 patent describing a skate design that allows users to swap between wheels and blades and adjust their position on the boot for better performance.",
  "what_it_does": "This patent describes a mechanical mounting system that attaches a wheel or blade assembly to the bottom of a boot. The system uses an elongate channel built into a frame, which is fixed to the boot's sole. The wheel or blade assembly slides into this channel and is held in place by a close-fitting mechanical interface, specifically using projections on the assembly that lock into recesses within the frame's side walls. A manually operable fastener then secures the assembly at a specific longitudinal position, allowing the skater to shift the wheels or blades forward or backward to suit their skating style.",
  "what_it_does_not_cover": [
    "Does not cover skates where the wheels are permanently riveted or molded directly into the boot sole.",
    "Does not cover non-adjustable wheel frames that lack the longitudinal displacement mechanism.",
    "Does not cover ice skates that use a traditional screw-in mounting plate without the described channel-and-projection locking system."
  ],
  "filed": "1982-07-21",
  "granted": "1985-01-08",
  "expires": "2002-07-21",
  "status": "expired",
  "holder": "Individual",
  "holder_url": "https://patentbrief.org/company/individual",
  "inventors": [
    {
      "name": "Scott B. Olson",
      "url": "https://patentbrief.org/inventor/scott-b-olson"
    }
  ],
  "times_cited": 46,
  "tags": [
    "consumer_electronics",
    "mechanical"
  ],
  "abstract": "A skate having an interchangeable operative blade or wheel assembly that is releasably fastened to a shoe or boot in a manner affording the selective longitudinal displacement of the blade or wheel assembly with respect to the shoe, and the precise positioning of the blade or wheel assembly with respect to the shoe in order to optimize the performance of the skate for the skater.",
  "url": "https://patentbrief.org/patent/us/4492385/inline-skates-rollerblade-olson",
  "markdown_url": "https://patentbrief.org/patent/us/4492385/inline-skates-rollerblade-olson/md",
  "google_patents_url": "https://patents.google.com/patent/US4492385",
  "relatedPatents": [
    {
      "patentNumber": "37305",
      "countryCode": "US",
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    },
    {
      "patentNumber": "4669140",
      "countryCode": "US",
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}